Professional CNC Cylinder Head Porting

Listing #: 1527965772
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Business name: Horsepower Heads
Location: Sydenham
Christchurch City
Canterbury
About: 30 years experience porting cylinder heads, designing and manufactur­ing engine parts for racing engines. Multiple world records in many classes.
Services offered: Profession­al cylinder head porting for those serious about achieving top results.
Areas serviced: Worldwide.
CNC cylinder head porting and complete cylinder head builds available for all common performance engines used here in New Zealand and Australia.

We dont modify cast iron heads sorry.

E mail or call to discuss your requirements.



We modify heads for cars, bikes and water craft. Basically if you want it to go fast and if it has valves and ports, we will modify it for you to the highest standard!


We use a Superflow 1020 Pro flow bench for flow testing. A Rottler P69 5 Axis CNC machining centre for head porting and our valve seats are cut to perfection using a Newen CNC machining centre.

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Expires: Sun 20 Jan, 11:57 am

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I sent my ls1 heads to kevin for CNC Porting he also dropped compression by 2 points.did some work for nos.I gained 19rwkw without NOS and 45 rwkw with only 110hp shot of nos so lots to go there. Very happy with results speed of job and advice Kevin is the man for heads AAA+++
floorit (450 450 positive feedback) Address Verified Oct 2018  Tue 13 Feb
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